If you want to get into watercooling but are on a budget, this
may be for you...

The concept of using water to cool your computer is not all that different
from how the engine in your car is cooled. It is pretty simple to understand,
there is a reservoir that holds the fluid to cool the cpu, it is pumped into
a block that is attached to the cpu, the heat transfers from the cpu to the
block and the water absorbs a fair amount of the heat that is produced. The
heated water is then passed into a radiator where it is cooled down with the
help of a fan. In theory water-cooling should provide more efficient cooling
than a standard air-cooled solution with minimal noise.